<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <script>
        var s1 = 'a'
        // es6变量
        let s2 = 'b'
        // es6常量
        const s3 = 'c'


        // es6模板字符串
        let str = `${s1}#${s3}`
        console.log(str)
    </script>
</body>
</html>
